diff --git a/Gemfile.lock b/Gemfile.lock
index 3fb5e8f..7ea55be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rake (10.5.0)
+    rake (13.0.1)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     rspec (3.7.0)
@@ -62,7 +62,7 @@ DEPENDENCIES
   coveralls (~> 0.7.2)
   egd!
   pry (~> 0.11.3)
-  rake (~> 10.0)
+  rake (~> 13.0)
   rspec (~> 3.7)
   simplecov (~> 0.15.1)
 
diff --git a/egd.gemspec b/egd.gemspec
index 2a423fa..d464003 100644
--- a/egd.gemspec
+++ b/egd.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "pgn", "~> 0.2.0" # for FEN handling
 
   spec.add_development_dependency "bundler", "~> 1.16"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.7"
   spec.add_development_dependency "pry", "~> 0.11.3"
   spec.add_development_dependency "simplecov", "~> 0.15.1"